Refrigerating apparatus.



M. TIBBETTS.

REFRIGERATING APPARATUS.

APPLICATION FILED Auc.19, 1916.

1 3 1 2, 932 Patented Aug. 12, 1919.

lib anion mine - 4 UNITED STATES PATENT OFFICE. v MILTON IIIBBETTS, OF DETROITfMICHIG-AN, BY'H IESNE ASSIGNMENTS, TO

THE ISKO COMPANY, OF CHICAGO, IIJJINOI S A. CORPORATION OF DELAWARE.

anrmenm'rme APPARATUS. 1

Specification of Letters Patent- PatentedAug. 12, 1919.

Application filed August 19, 1916. Serial No. 115,837.

- To all whom it may concern:

Be it known that I, MrL'roN Tmenrrrs, a citizen of'the United States, and resident of Detroit, \Vayne county, State of Michigan, have invented certain new and useful Improvements in Refrigerating Apparatus,

of which the following is a s ecification.

This invention relates to refrigerating apparatus and particularly tov refrigeratmg apparatus of the compression type.

One of the objects of the invention is to provide a compression type apparatus with an arrangement of an aircooled condenser that is particularly efiicient, and sightly.

Another object of the invention is to provide sectional expansion andcondenser coils to facilitate varying the capacity of the apaway, of a refrigerating apparatus built according to this invention,

Referring to the drawing, 10 represents refrigerator box of conventional form, having a compartment 11 adapted to receive the refrigerating element 12. This compartment is in the: upper part of the box and an opening 13 is formed in the topthrough which said element is inserted.

A base or support 14 of a refrigerating unit rests upon the top of the refrigerator box and the element 12 is suspended therefrom as by the brackets 15. This refrigerating or expansion element of the compression system is in the form of several series of loops of piping detachably connected together so thata section such as 16 of the piping may be easily remocd or another section added to vary the capacity of the apparatus. The-detachable oints are indicated at 17. By looping the coils as shown several small compartments within the coils are provided within which pans of water may be placed for freezing for domestic use.

The refrigerating system contemplated herein is designed particularly to use a refrigerant of low boiling point such as sulfur dioxid and the apparatus is designed for air coolin the refrigerant. Since the air at the si es or lower part of the re-' frigerator box is cooler than that above the box, the condenser 18 in the present invention is arranged at the side extending well down toward the bottom of the box. This 7 I condenser is preferably suspended from the base 14 by means of brackets 19 extending laterally from one end of the said base and bars 20 depending from the brackets. Also, the condenser is of sectional form, each section comprising coils of 'piping 21 vertically extending and detachably connected for varying the capacity or for readily repairing a broken section. The detachable joints are indicated at 22. v A

On top of the support or base 14 is mounted a compressor or pump 23 together with its operating means which may bea motor 24. A connecting belt 25 provides the operative connection. A connecting ipe 26 leads from the compressor to the con enser 18, another pipe 27 leads from the condenser to the expansion coil 12 through an expansionvalve 28, and a third pipe 29 leads from the expansion element to the compressor, to complete the circuit.

It will be understood that suitable cur- I I rent may be supplied to the motor 24 which will operate the compressor. The refrigerant will be withdrawn from the expansion coils and compressed vand passed into the 4 condenser where it Willbe cooled. The refrigerant is then passed throu h the expansion valve 28 into the expansion coil 12 in the compartment 11 whereit extracts the heat and cools the refrigerator box.

It will be further understood that the invention is not limited to-the details shown the form herein illustrated and spec1fidescribed.

call

avmg the described my invention, what I I claim and desire to secure by Letters Patent is:

In a refrigerating apparatus, in combination, a refrigerator box having an opening 5 in the top, a support mounted on top of said box over said opening, a compressor and motor on said support, an expansion coil in said box and connected to said support, brackets extending from said support over the side of the refrigerator box, and a con- 10 denser suspended from said braekets.

In testimony whereof I aifix my signature.

MILTON TIBBETTS. 

